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Adaptive envelope-constrained filtering

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3 Author(s)
Ba-Ngu Vo ; Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Vic., Australia ; Sumeetpal Singh ; Tadic, V.

In the discrete-time envelope-constrained filtering problem, the gain of the filter is minimised subject to the constraint that the filter output to a prescribed input fits into a given envelope. A novel adaptive algorithm for solving this problem based on stochastic optimisation is presented. The algorithm is simple to implement on-line and convergence is demonstrated in numerical examples. Under mild regularity assumptions, convergence follows from standard stochastic approximation results.

Published in:

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on  (Volume:6 )

Date of Conference:

6-10 April 2003